Drew Hess <dhess@CS.Stanford.EDU> wrote:
> Mark P. Gooderum writes:
> >
> > But on clock speed versus memory speed, remember that a 486 still isn't
> > any where close to a RISC chip in cycles per instruction ratio.
> >
>
>
> Well, this is a topic for another place, but cycles/instruction is not
> necessarily a good benchmark for comparing architectures-- especially
> when comparing load/store (e.g. "RISC") architectures to register/memory
> (e.g. x86) architectures.
I think you missed the point. The point is: a high cycles per
instruction ratio means that having the internal clock be twice as
fast as the external clock is likely to make a big difference in
overall performance.
Mark
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Email: Mark_Weaver@brown.edu | Brown University
PGP Key: finger mhw@cs.brown.edu | Dept of Computer Science
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